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/**
Copyright(c) Maynard Electronics, Inc. 1984-89
Name: opensys.c
Date Updated: $./FDT$ $./FTM$
Description: This file contains the code to open and close a specified
file system. A file system must be opened prior to access.
$Log: J:/LOGFILES/OPENSYS.C_V $
Rev 1.15 26 Jul 1993 19:22:54 DON
When we close down the file system, added a call to free the os path or name queue!
Rev 1.14 11 Nov 1992 09:52:34 GREGG
Unicodeized literals.
Rev 1.13 10 Nov 1992 08:17:46 STEVEN
move os path and os name into common part of dblk
Rev 1.12 25 Sep 1992 16:22:22 CARLS
Fixed error in last edit. [Barry]
Rev 1.11 25 Sep 1992 13:18:26 BARRY
Removed references to FS_SIZEOF_NAMELESS_STREAM_HEAD.
Rev 1.10 01 Sep 1992 11:44:20 TIMN
Fixed typo for BINT16
Rev 1.9 18 Aug 1992 10:26:48 STEVEN
fix warnings
Rev 1.8 23 Jul 1992 12:41:06 STEVEN
fix warning
Rev 1.7 09 Jul 1992 13:58:30 STEVEN
BE_Unicode updates
Rev 1.6 21 May 1992 13:58:10 STEVEN
added more long path stuff
Rev 1.5 16 Mar 1992 10:06:56 LORIB
Added InitQueue() for path_q.
Rev 1.4 01 Oct 1991 11:15:48 BARRY
Include standard headers.
Rev 1.3 06 Aug 1991 18:30:24 DON
added NLM File System support
Rev 1.2 25 Jun 1991 09:34:54 BARRY
Changes for new config.
Rev 1.1 03 Jun 1991 13:27:04 BARRY
Remove product defines from conditional compilation.
Rev 1.0 09 May 1991 13:38:26 HUNTER
Initial revision.
**/
/* begin include list */
#include <stdlib.h>
#include <std_err.h>
#include "stdtypes.h"
#include "msassert.h"
#include "beconfig.h"
#include "fsys.h"
#include "fsys_prv.h"
/* $end$ include list */
/**/
/**
Name: FS_OpenFileSys()
Description: This function is called to get a file system handle.
The handle is required for all subsequent calls to the file system.
This routine allocates all resources necessary to support the
particular file system. The valid file system types are:
LOCAL_IMAGE
LOCAL_DOS_DRV
REMOTE_DOS_DRV
NOVELL_DRV
NOVELL_AFP_DRV
IBM_PC_LAN_DRV
Modified: 7/14/1989
Returns: Error codes:
UNDEFINED_TYPE
OUT_OF_MEMORY
SUCCESS
Notes:
See also: $/SEE( FS_AttachDLE(), FS_CloseFileSys() )$
Declaration:
**/
/* begin declaration */
INT16 FS_OpenFileSys(
FSYS_HAND *fsh, /* O - Created file system handle */
INT16 type, /* I - File system type */
BE_CFG_PTR cfg ) /* I - configuration structure */
{
if ( type >= MAX_DRV_TYPES ) {
return ( FS_UNDEFINED_TYPE ) ;
}
*fsh = (FSYS_HAND)calloc( 1, sizeof( struct FSYS_HAND_STRUCT ) ) ;
if( *fsh != NULL ) {
(*fsh)->stream_ptr = NULL;
(*fsh)->stream_buf_size = 0;
(*fsh)->cur_dir = calloc( 1, CUR_DIR_CHUNK ) ;
if ( (*fsh)->cur_dir == NULL ) {
free( (*fsh)->stream_ptr ) ;
free( *fsh ) ;
} else {
#if ( defined(FS_AFP) && defined(FS_NONAFP) )
if ( ( type == NOVELL_AFP_DRV ) && !BEC_GetAFPSupport( cfg ) ) {
type = NOVELL_DRV ;
}
#endif
#if ( defined(FS_NLMAFP) && defined(FS_NLMNOV) )
if ( ( type == NLM_AFP_VOLUME ) && !BEC_GetAFPSupport( cfg ) ) {
type = NLM_VOLUME ;
}
#endif
(*fsh)->f_type = type ;
(*fsh)->tab_ptr = &(func_tab[type]) ;
(*fsh)->leng_dir = CUR_DIR_CHUNK ;
(*fsh)->cfg = cfg;
InitQueue( &((*fsh)->min_ddb_stk) ) ;
InitQueue( &((*fsh)->in_use_name_q) ) ;
InitQueue( &((*fsh)->avail_name_q) ) ;
return ( SUCCESS ) ;
}
}
return ( OUT_OF_MEMORY ) ;
}
/**/
/**
Name: FS_ReOpenFileSys()
Description: This function is called to modify a file system handle.
The previously opened file system is closed and the memory for the old
handle is reused for the new file system. This routine allocates all
resources necessary to support the particular file system. The valid
file system types are:
LOCAL_IMAGE
LOCAL_DOS_DRV
REMOTE_DOS_DRV
NOVELL_DRV
NOVELL_AFP_DRV
IBM_PC_LAN_DRV
Modified: 7/14/1989
Returns: Error codes:
UNDEFINED_TYPE
OUT_OF_MEMORY
SUCCESS
Notes:
See also: $/SEE( FS_AttachDLE(), FS_CloseFileSys() )$
Declaration:
**/
/* begin declaration */
INT16 FS_ReOpenFileSys(
FSYS_HAND fsh, /* O - Modified file system handle */
INT16 type, /* I - File system type */
BE_CFG_PTR cfg ) /* I - configuration structure */
{
if ( type < MAX_DRV_TYPES ) {
return ( FS_UNDEFINED_TYPE ) ;
}
msassert( fsh != NULL ) ;
if ( fsh->attached_dle != NULL ) {
FS_DetachDLE( fsh ) ;
}
fsh->f_type = type ;
fsh->tab_ptr = &(func_tab[type]) ;
fsh->cur_dir[0] = TEXT('\0') ;
fsh->cfg = cfg;
InitQueue( &(fsh->min_ddb_stk) ) ;
InitQueue( &(fsh->in_use_name_q) ) ;
InitQueue( &(fsh->avail_name_q) ) ;
return ( SUCCESS ) ;
}
/**/
/**
Name: FS_CloseFileSys()
Description: This releases any memory allocated by the FS_OpenFileSys()
function. It will also release any memory leftover from FS_PushDir()
Modified: 7/14/1989
Returns: Error codes:
FS_NOT_OPEN
SUCCESS
Notes:
See also: $/SEE( FS_OpenFileSys( ), FS_PushDir( ) )$
Declaration:
**/
/* begin declaration */
INT16 FS_CloseFileSys( fsh )
FSYS_HAND fsh ;
{
if ( fsh != NULL ) {
/* Release any unreleased resources in the name queue */
FS_FreeOSPathOrNameQueueInHand( fsh );
if ( fsh->attached_dle != NULL ) {
FS_DetachDLE( fsh ) ;
}
free( fsh->cur_dir ) ;
free( fsh->stream_ptr ) ;
free( fsh ) ;
return ( SUCCESS ) ;
} else {
return ( FS_NOT_OPEN );
}
}
UINT16 FS_GetStringTypes( FSYS_HAND fsh )
{
return BEC_GetStringTypes( fsh->cfg ) ;
}
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